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Clinical implication of an impaired fasting glucose and prehypertension related to new onset atrial fibrillation in a healthy Asian population without underlying disease: a nationwide cohort study in Korea

 Sean S. Lee  ;  Kyoung Ae Kong  ;  Daehoon Kim  ;  Yeong-Min Lim  ;  Pil-Sung Yang  ;  Jeong-Eun Yi  ;  Minsuk Kim  ;  Kihwan Kwon  ;  Wook Bum Pyun  ;  Boyoung Joung  ;  Junbeom Park 
 EUROPEAN HEART JOURNAL, Vol.38(34) : 2599-2607, 2017 
Journal Title
Issue Date
Adult ; Aged ; Atrial Fibrillation/ethnology ; Atrial Fibrillation/etiology* ; Blood Glucose/metabolism* ; Body Mass Index ; Cohort Studies ; Fasting/blood ; Female ; Healthy Volunteers ; Humans ; Life Style ; Male ; Middle Aged ; Prehypertension/complications* ; Prehypertension/ethnology ; Republic of Korea/ethnology ; Risk Factors ; Young Adult
Atrial fibrillation ; Body mass index ; Healthy population ; Impaired fasting glucose ; Prehypertension
Aims: For healthy populations without comorbidities, whether prehypertension and impaired fasting glucose (IFG) are associated with new onset atrial fibrillation (AF) is not well known.

Methods and results: We included 366 507 subjects (age ≥20 years) not diagnosed with non-valvular AF from the Korean National Health Insurance Service-National Sample Cohort (NHIS-NSC) from 2003 to 2008. In total, 139 306 subjects diagnosed with AF-related comorbidities were excluded, and a 227 102 healthy population was followed up until 2013. The body mass index (BMI), blood pressure (BP), and fasting blood glucose (BG) level were acquired during National health check-ups. Subjects with IFG [hazard ratio (HR) 1.16, P = 0.017] had a higher AF risk and the diastolic BP (HR 1.11, P = 0.045) was a stronger indicator for an AF incidence than the systolic BP. After dividing the subjects into two mutually exclusive groups, AF incidence was increased dramatically by the combination effect of both prehypertension and an IFG in BMI <25 kg/m2 group, but, in BMI ≧25 kg/m2 group, did not show this tendency. An IFG related to AF risk was more prominent in the BMI <25 kg/m2 population (HR 1.18, P = 0.025) than those with a BMI ≥25 kg/m2, and subjects with both an IFG and prehypertension had a greater AF risk (HR 1.27, P = 0.016) than those without.

Conclusion: Even in a healthy Asian populations without comorbidities, prehypertension and IFG were important risk factors of AF. Specifically, when prehypertension, including systolic and diastolic BPs, was finally combined with the IFG, the risk of new onset AF was increased especially in the BMI <25 kg/m2 group.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dae Hoon(김대훈) ORCID logo https://orcid.org/0000-0002-9736-450X
Yang, Pil Sung(양필성)
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
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